<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
                "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
  <title>Description of filter_DOOG_1D</title>
  <meta name="keywords" content="filter_DOOG_1D">
  <meta name="description" content="1D difference of offset Gaussian (DooG) filters.">
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
  <meta name="generator" content="m2html &copy; 2003 Guillaume Flandin">
  <meta name="robots" content="index, follow">
  <link type="text/css" rel="stylesheet" href="../m2html.css">
</head>
<body>
<a name="_top"></a>
<!-- menu.html filters -->
<h1>filter_DOOG_1D
</h1>

<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="box"><strong>1D difference of offset Gaussian (DooG) filters.</strong></div>

<h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="box"><strong>function dG = filter_DOOG_1D( r, sig, deriv, show ) </strong></div>

<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="fragment"><pre class="comment"> 1D difference of offset Gaussian (DooG) filters.

 Creates a 2D derivative of Gaussian kernel.  Use primarily for visualization purposes.
 For filtering better to use the indvidiual seperable kernels for efficiency purposes.
 
 INPUTS
   r       - final mask will have length 2r+1
   sig     - sigma for Gaussian 
   deriv   - order of derivative 
   show    - [optional] figure to use for display (no display if == 0)

 OUTPUTS
   dG      - The derivative of Gaussian mask

 EXAMPLE
   dG = filter_DOOG_1D( 11, 2, 3, 1 );

 DATESTAMP
   29-Sep-2005  2:00pm

 See also <a href="filter_DOOG_2D.html" class="code" title="function dG = filter_DOOG_2D( r, sigx, sigy, nderivs, show )">FILTER_DOOG_2D</a>, <a href="filter_DOOG_3D.html" class="code" title="function dG = filter_DOOG_3D( r, sigmas, nderivs, show )">FILTER_DOOG_3D</a></pre></div>

<!-- crossreference -->
<h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
This function calls:
<ul style="list-style-image:url(../matlabicon.gif)">
<li><a href="filter_visualize_1D.html" class="code" title="function filter_visualize_1D( f )">filter_visualize_1D</a>	Used to help visualize the a 1D filter.</li></ul>
This function is called by:
<ul style="list-style-image:url(../matlabicon.gif)">
</ul>
<!-- crossreference -->



<hr><address>Generated on Wed 03-May-2006 23:48:50 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/" target="_parent">m2html</a></strong> &copy; 2003</address>
</body>
</html>